WP4JSI
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderMALDONADO, EDUARDO
License ClassNovice
Min. Class RequiredTechnician
LocationBAYAMON, PR
Grant DateDec 24, 1990
Expiration DateDec 24, 2000
Cancellation DateDec 25, 2002
Available for ApplicationsDec 25, 2002
WP4JSI is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by MALDONADO, EDUARDO in BAYAMON, PR. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by RODRIGUEZ, JAEL on Apr 6, 2026. WP4JSI has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
.-- .--. ....- .--- ... ..
CW Weight: 37 units(Moderate)
Voice Phonetics
Whiskey Papa Four Juliet Sierra India
Readability: 6/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredDec 25, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- RODRIGUEZ, JAELFiled Apr 6, 2026DismissedFCC ↗